Why should you not use the coarse adjustment knob with the medium and high power objective lenses?

Avariable that is not being directly tested during an experiment should be changed varied experimented controlled

Phosgene (carbonyl chloride), cocl2, is an extremely toxic gas that is used in manufacturing certain dyes and plastics. phosgene can be produced by reacting carbon monoxide and chlorine gas at high temperatures: co(g) cl2(g)⇌cocl2(g) carbon monoxide and chlorine gas are allowed to react in a sealed vessel at 477 ∘c . at equilibrium, the concentrations were measured and the following results obtained: gas partial pressure (atm) co 0.830 cl2 1.30 cocl2 0.220 what is the equilibrium constant, kp, of this reaction

Which of the following is not an assumption that scientists must make about the natural world? a. regularity b. causality c. predictability d. plausibility